Commit 4bdde044 authored by Li Zefan's avatar Li Zefan Committed by Steven Rostedt
Browse files

tracing: Convert some signal events to DEFINE_TRACE 



Use DECLARE_EVENT_CLASS to remove duplicate code:

text    data     bss     dec     hex filename
  23639    6084       8   29731    7423 kernel/signal.o.orig
  22727    6084       8   28819    7093 kernel/signal.o

2 events are converted:

  signal_queue_overflow: signal_overflow_fail, signal_lose_info

No functional change.

Acked-by: default avatarMasami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: default avatarLi Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4BA97FBD.8070703@cn.fujitsu.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 2eaa9cfd

include/trace/events/signal.h

+22 −30
Original line number Diff line number Diff line
@@ -100,18 +100,7 @@ TRACE_EVENT(signal_deliver, 
		  __entry->sa_handler, __entry->sa_flags)

);



/**

 * signal_overflow_fail - called when signal queue is overflow

 * @sig: signal number

 * @group: signal to process group or not (bool)

 * @info: pointer to struct siginfo

 *

 * Kernel fails to generate 'sig' signal with 'info' siginfo, because

 * siginfo queue is overflow, and the signal is dropped.

 * 'group' is not 0 if the signal will be sent to a process group.

 * 'sig' is always one of RT signals.

 */

TRACE_EVENT(signal_overflow_fail,

DECLARE_EVENT_CLASS(signal_queue_overflow,



	TP_PROTO(int sig, int group, struct siginfo *info),
@@ -134,6 +123,24 @@ TRACE_EVENT(signal_overflow_fail, 
		  __entry->sig, __entry->group, __entry->errno, __entry->code)

);



/**

 * signal_overflow_fail - called when signal queue is overflow

 * @sig: signal number

 * @group: signal to process group or not (bool)

 * @info: pointer to struct siginfo

 *

 * Kernel fails to generate 'sig' signal with 'info' siginfo, because

 * siginfo queue is overflow, and the signal is dropped.

 * 'group' is not 0 if the signal will be sent to a process group.

 * 'sig' is always one of RT signals.

 */

DEFINE_EVENT(signal_queue_overflow, signal_overflow_fail,



	TP_PROTO(int sig, int group, struct siginfo *info),



	TP_ARGS(sig, group, info)

);



/**

 * signal_lose_info - called when siginfo is lost

 * @sig: signal number
@@ -145,28 +152,13 @@ TRACE_EVENT(signal_overflow_fail, 
 * 'group' is not 0 if the signal will be sent to a process group.

 * 'sig' is always one of non-RT signals.

 */

TRACE_EVENT(signal_lose_info,

DEFINE_EVENT(signal_queue_overflow, signal_lose_info,



	TP_PROTO(int sig, int group, struct siginfo *info),



	TP_ARGS(sig, group, info),



	TP_STRUCT__entry(

		__field(	int,	sig	)

		__field(	int,	group	)

		__field(	int,	errno	)

		__field(	int,	code	)

	),



	TP_fast_assign(

		__entry->sig	= sig;

		__entry->group	= group;

		TP_STORE_SIGINFO(__entry, info);

	),



	TP_printk("sig=%d group=%d errno=%d code=%d",

		  __entry->sig, __entry->group, __entry->errno, __entry->code)

	TP_ARGS(sig, group, info)

);



#endif /* _TRACE_SIGNAL_H */



/* This part must be outside protection */

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